Rubber heel or lift



J. T. ASHTON.

RUBBER HEEL OR LIFT.

APPLICATION FILED OCT. so, 1918.

Patnt'ed Mar. 16,192().

mm STATES PATENT OFFICE.

JOHN T. A$HTON, 0F BRISTOL, RHODE ISLAND, ASSIGNOR 0F ONE-HALF T0 EUGENE HEILHECKER, OF IBRIS'JIOL1 RHODE ISLAND.

RUBBER HEEL OR LIFT.

specification of Letters Patent.

To all whom it may concern:

Be it known that 1, JOHN T. ASHTON, a citizen of the United States, residing at Bristol, in the county of Bristol and State of Rhode Island, have invented a new and useful Improvement in Rubber Heels or Lifts, ,of which the following is a specilication.

This invention relates to certain new and useful improvements in rubber heels or lifts, and the primary object of the invention is to provide a heel or lift which has an improved form of wearing points embedded therein.

The invention briefly proposes a blank applicable to either a heel or lift, the blank having a series of cup-like or hollow wings which extend in substantially arcuate formation around the heel, the wings forming wearing points and being formed hollow so as to maintain as far as possible the maximum area of the rubber and the preservation as far as possible of the resilient properties thereof.

in the drawings lligure l is a bottom plan view of a heel constructed in accordance with the invention,

ll ig, 92 is a central longitudinal sectional view of Fig. l, and Fig, 3 is a bottom plan view of the wearing plate,

ln proceeding in accordance with the present invention, a plate or blank 1 formed of sheet metal is struck-out with the main holes or openings 2 and the'nail holes or openings '3, which latter receive the usual nails that are driven into the shoe for securing the heel or lift'thereto. The blank is struclr-cut with the flat outwardly extending parts which are of approximate T- shape and extend radially of the blank and constitute the wearing points. These parts lare now bent or turned upwardly or at right angles and into the somewhat U or cup shape as depicted in the drawings. The

l wings, it will be seen, have their lower ends seating on the plate 1 and are accordingly supported thereby.

A piece of rubber or composition is now placed in the bottom of the mold, and the wearing plate placed upon the same, following which other and smaller pieces of rubber or composition are forced into the mold to completely and compactly fill the same and surround the wearing plate, after which the whole is vulcanized so that the wearing plate is completely embedded in the rubber leaving only the points exposed.

From the foregoing it will be apparent that the plate is entirely embedded in the rubber of the heel or lift and is itself formed with nail holes so that the nails are driven directly through the wearing plate to thus more effectively hold the heel or lift in place. It is also particularly to be noted that the wearing points or wings are provided with cutaway portions 5 in the outer end edges thereof so that the rubber of the heel or lift will extend through and across the cutaway portions 5 and will occupy the central part of the heel, or in other words, the rubber in the hollow wings will have connections with the rubber surrounding or exterior of the wings or wearing points.

As depicted in Fig. l, the structure described in the foregoing, produces as the result of the cutaway portions 5, a heel or lift structure wherein the wear points appear as independent wings extending radially of the heel.

It will also be apparent that a variety of forms or shapes may be imparted to the wearing points and that the latter are connected integrally with the blank or plate by bending the points thereabout. By virtue of the inner ends or heads of the ill-parts seating on the plate same are given a firm and substantial support so as to relieve the connections of the points with the plate of all strain, since the pressure on the points in walking is directly taken up by the plate.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent- Patented Mar. re, 1920 In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN T. ASHTON. Witnesses:

ADA E. HAGERTY,

J. A. MILLER. 

